Vim can not recognize comment "//end" when autoindent full verilog code

Question

I'm now using gvim to write verilog code. When i use the auto indent full text function (command: gg=G), gvim starts to auto indent the full text. However, gvim can recognize "// begin" but can not recognize "// end", which leads to wrong code indents. e.g.(after input command gg=G):

always@(posedge iClk) begin
    some codes.....
    if(condition....) begin
        some codes....
    end
    //if(condition..) begin
        //some commented out codes...
        //end
        if(condition...) begin
            some codes...
        end
    end

Gvim can recognize the begin in //if(condition) begin, and auto indents the next line //some commented out code.... But when comes to //end, gvim falls to recognize and makes wrong code indents to all the codes below the //end.

Could someone tell me how to solve this problem, please?

Answer 1

This looks like a bug with the standard verilog indent function, part of the standard vim distribution at runtime/indent/verilog.vim.

A search for verilog indent files on www.vim.org shows four options, including one labeled "bugfixes to vim indent for verilog : bugfixes: previous version was evaluating expressions inside comments". You could try that one, but it is the lowest-rated of the options. You could also try GitHub.

Answer 2

To add to benjifishers answer since you are not specifying the indentation file the default version will be used runtime/indent/verilog.vim.

If you have not already install pathogen, I recommend that you do so, it makes switching syntax & indentation files very easy.

Basically it will allow you to add plugins as a single folder into ~/.vim/bundle, which also implies removeing the ones you do not want is easy as deleting a single folder. This is useful when trying out language plugins otherwise they often require files to be put in:

~/.vim/ftdetect
~/.vim/ftplugin
~/.vim/indent
~/.vim/syntax

The Verilog option on vim.org is probably lowly rated because it does not support SystemVerilog Keywords.

I have a SystemVerilog plugin which I use but do not think the re-indent function is fixed there.

Mine is based on nickjones verilog_systemverilog.
The latest under active development looks like nachumk's systemverilog.vim.

NB: for re-indentation I have this setup in my .vimrc which re-indents from ;g and keeps current position in the file.

"http://technotales.wordpress.com/2010/03/31/preserve-a-vim-function-that-keeps-your-state/
function! Preserve(command)
  " Preparation: save last search, and cursor position.
  let _s=@/
  let l = line(".")
  let c = col(".")
  " Do the business:
  execute a:command
  " Clean up: restore previous search history, and cursor position
  let @/=_s
  call cursor(l, c)
endfunction

map ;g :call Preserve("normal! gg=G")<CR>